On Wed, Feb 20, 2013 at 11:26 AM, Roland Koebler <r.koeb...@yahoo.de> wrote:
> Hi, > > On Wed, Feb 20, 2013 at 10:50:54AM +0100, inshu chauhan wrote: > > I have 10 simple text files with 3 columns x,y,z delimited by "space". I > am > > trying to combine these 10 files to get a single text file. > > > > Eg. of data in 10 files is > > 299 446 2 > Do you only want to concat the files, or do you want to parse/mangle > them? > > If you only want to concat the files, I would use some shell-tools, > like "cat" on Linux or "copy" on Windows, so > > copy C:\Users\inshu.chauhan\Desktop\ForModel_600\*.arff > C:\Users\inshu.chauhan\Desktop\test2.arff > > should do it. > > > Can in some some way I set delimiter to NULL as the prog gives me error > if > > I do so. > Of course -- a CSV without a delimiter doesn't make any sense. > > > I dont why there is space between the attribute of first column in > > reading and there is space between every row too.. > Because there's a "split()" missing in your code. You currently tell the > CSV-writer to write the columns 2,9,9, , , ,4,4,6, , , ,2 as > space-separated CSV. So, try something like > rows = [r.split() for r in open(f, "r").readlines()] > > > Or can I merge these text files without using csv module , directly in > > python ? > If you don't need to parse/mangle the contents, you don't need the csv > module. Simple open the resulting file for writing, and then read out > the source files and write their contents into the resulting file. > > > Yes I just want to concat the files , not parse/mangle the files. How can i simply read all files in a folder in my computer and write them into a single file ? just by 'printf ' is it possible ?
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